Desktop high-speed centrifuge 4 common faults, how to deal with is the key

　　In addition to being widely used in production processes, desktop high-speed centrifuges can also be used in laboratories At present, the device is widely used in clinical medicine, biochemistry, genetic engineering, immunology and other fields, and is the necessary instrument for centrifugal separation in hospitals, scientific research units and colleges and universities at all levels
Industry said, compared with similar products abroad, domestic desktop high-speed centrifuges still have a larger room for progress It is understood that imported desktop high-speed centrifuges in addition to super intelligent display, intelligent centrifugal expert software, remote monitoring and other performance, its design, high efficiency, can reduce resonance, prevent noise problems
With the continuous development of domestic centrifugal technology, domestic desktop high-speed centrifuges are also improving, the current market is not short of some medium and new centrifuge equipment, with smooth operation, small size, beautiful shape, low temperature rise, high efficiency and wide applicability and other advantages
However, in the process of using desktop high-speed centrifuges, many industries said that there will be motor does not run, or speed does not reach the rated speed, low speed can not start, as well as noise and other problems In advance to grasp the equipment common faults and the corresponding solutions, is conducive to the user to deal with the fault in a timely manner, as soon as possible to resume production or experiments
So what are the common failures of desktop high-speed centrifuges? What should be done? The relevant technical staff listed the following common problems and corresponding solutions, i hope to help the user
Problem one, the desktop high-speed centrifuge after power, the motor does not turn The motor is equivalent to the engine of the entire device and cannot be operated without turning the subsequent operation
In this case, it is generally necessary to check the power cord, plug, socket, if there is damage should be replaced, if there is no problem, check the band switch or the blocker is damaged or the wire is opened, if damaged or open, replace the damaged element, re-weld the wire, if there is no problem, check the motor magnetic field coil for break or break (internal) if the coil can be re-welded If the coil internal open circuit can only be re-wound around the coil
Question two, the desktop high-speed centrifuge motor has run, but the speed does not reach the rated speed, what is the reason for this situation? What do we do?
Technicians recommend that the user check the bearings first and replace them if the bearings are damaged, and if the bearings are lacking oil or too much dirt inside the bearings, they should clean the bearings and grease them
In addition, it is necessary to check whether there are anomalies on the surface of the rectifier, or whether the brush and the blast surface of the rectifier match, when there is an anomaly on the surface of the rectifier, if there is a layer of oxide, you can use fine sand paper to polish it If the rectifier does not match the brush, it should be adjusted to a good contact state
Excluding the above problems, the user needs to check the rotor coil for a short circuit phenomenon, if any, should be re-wrapped around the coil
Problem three, when the weather is cold, the low speed of the desktop high-speed centrifuge can not start This situation is mainly affected by the weather, can be lubricating solidification or lubricant deterioration dried up stick At the beginning, use your hand to help re-turn or clean and actively re-oil
Problem four, the desktop high-speed centrifuge vibration is obvious, loud noise Industry advice is to check first for imbalances Also, check that the screw of the fixing machine is loose and, if so, tighten, check that the bearingist is damaged or bent, and if so, replace the bearing If friction occurs because the machine cover is deformed or is not positioned correctly, it needs to be adjusted.